If you need to use your portable laptop computer in places that don't have
electrical outlets readily available, then you'll need to depend upon its
battery for power. Laptop batteries provide you with convenience and
flexibility, whether you use your computer for work or pleasure.
Without laptop batteries, we wouldn't be able to do our computer work from
the park on beautiful, sunny days, and travel with our computers would be
much more difficult! Laptop batteries ensure that we can use our
computers whenever we want, wherever we want.
How long does a laptop battery last? Well, that depends on the
battery type and computer usage pattern. Most Nickel Metal Hydride
(NiMH) laptop batteries will last up to two hours at a sitting, while
Lithium Ion laptop batteries may last up to three hours between
charges. Over time, as a battery is repeatedly drained and
recharged, its life cycle will gradually shorten, until a charge lasts
only ten or fifteen minutes — too short a time to perform useful
work without a power adapter attached. This may be a symptom of a
battery memory problem, which can sometimes be resolved by completely
draining the battery and recharging it several times. If this does
not solve the problem, it is probably time to order a new laptop battery.
Battery manufacturers rate their laptop batteries' capacity in milliamps
per hour (mAh). The higher the mAh rating, the longer the battery
will last between charges. For example, a laptop battery rated at
4000 mAh is designed to provide 4000 milliamps of current for one hour
(or 1000 milliamps for four hours) — at room temperature.
Batteries for laptop computers and notebook computers are generally
available from the computer manufacturer; these are known as OEM (Original
Equipment Manufacturer) batteries. In addition, compatible batteries
are available for most laptops and notebooks at substantially lower cost.
Most contemporary laptop batteries use lithium-ion (Li-ion) or lithium-polymer (Li-polymer) technology.
Li-ion batteries use a liquid electrolyte between their positive and negative electrodes, while Li-polymer batteries use a gel-like electrolyte.
Li-ion batteries are relatively inexpensive and efficient, but they can catch fire if the barrier separating the electrodes is breached.
Li-polymer batteries are more expensive to produce and less efficient than their Li-ion cousins.
To learn about lithium battery care and maintenance, read this informative Apple notebook batteries article.
US Capitol riots: Nancy Pelosi's laptop still not recovered
Prosecutors say Speaker Pelosi's HP computer was lifted from her office by 22-year-old Trump fan Riley Williams during the deadly riot on January 6.
Daily Mail. Wednesday, 27 Jan 2021 15:54:26 GMT.